Briefly introduce the application of spiral axis sprayed tungsten carbide in the chemical industry

Source：www.hoahocsupham.com Release date： 2025年07月14日

Information summary：In the chemical industry, the screw shaft is the core component of material conveying and mixing equipment (such as screw conveyors, reaction kettle mixing shafts, etc.), often facing harsh working conditions such as high temperature, corrosion, and material erosion (such as granular and high viscosity media). Spraying tungsten carbide (a high hardness and high wear resistance coating material) on

In the chemical industry, the screw shaft is the core component of material conveying and mixing equipment (such as screw conveyors, reaction kettle mixing shafts, etc.), often facing harsh working conditions such as high temperature, corrosion, and material erosion (such as granular and high viscosity media). Spraying tungsten carbide (a high hardness and high wear resistance coating material) on the surface of the spiral shaft can significantly improve its service life and stability. The main application scenarios are as follows:
1. Corrosive material transportation: When transporting acidic and alkaline solutions, as well as chemical raw materials containing chloride ions, the chemical inertness of tungsten carbide coating can resist corrosion, avoid structural damage caused by erosion of the spiral shaft substrate (such as carbon steel), and ensure the continuous operation of the transportation system (such as the transportation of ammonium chloride materials in fertilizer production).
2. High hardness particle material processing: For hard materials such as coal powder, catalyst particles, and ore powder, tungsten carbide coating (with a hardness of HV1000 or above) can resist the erosion and wear of materials on spiral blades, reduce blade thinning and deformation problems, and lower equipment shutdown and maintenance frequency (such as solid material transportation in coal chemical and chemical industries).
3. High temperature working condition adaptation: In the application of stirring shafts in high-temperature reaction vessels, tungsten carbide coating is resistant to high temperature oxidation (can work in environments above 500 ℃ for a long time), can withstand the friction and thermal impact of high-temperature materials, and extend the service life of the shaft body (such as stirring equipment in polyester synthesis and resin production).

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